Articles | Volume 16, issue 3
https://doi.org/10.5194/acp-16-1511-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-1511-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
10 Feb 2016
Research article |
| 10 Feb 2016
Origin of oxidized mercury in the summertime free troposphere over the southeastern US
Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
L. Jaeglé
Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
L. E. Gratz
Environmental Program, Colorado College, Colorado Springs, CO, USA
J. L. Ambrose
School of Science, Technology, Engineering and Mathematics, University of Washington-Bothell, Bothell, WA, USA
now at: College of Engineering and Physical Sciences, University of New Hampshire, Durham, NH, USA
D. A. Jaffe
Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
School of Science, Technology, Engineering and Mathematics, University of Washington-Bothell, Bothell, WA, USA
N. E. Selin
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
T. L. Campos
Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
F. M. Flocke
Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
M. Reeves
Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
D. Stechman
Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
M. Stell
Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
J. Festa
Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA
Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA
A. J. Weinheimer
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
D. J. Knapp
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
D. D. Montzka
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
G. S. Tyndall
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
E. C. Apel
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
R. S. Hornbrook
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
A. J. Hills
Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
D. D. Riemer
Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA
N. J. Blake
Department of Chemistry, University of California, Irvine, CA, USA
C. A. Cantrell
Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO, USA
R. L. Mauldin III
Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO, USA
Department of Physics, University of Helsinki, Helsinki, Finland
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Latest update: 16 Nov 2025
Short summary
We present airborne observations of mercury over the southeastern USA during summer. Higher concentrations of oxidized mercury were observed in clean, dry air masses descending in the subtropical anti-cyclones. We used an atmospheric model to simulate the chemistry and transport of mercury. We found reasonable agreement with the observations when the modeled oxidation of elemental mercury was increased, suggesting fast cycling between elemental and oxidized mercury.
We present airborne observations of mercury over the southeastern USA during summer. Higher...
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